Landscape pattern and productivity characteristics of the oasis landscape ecosystem in Linze,Gansu,China

Abstract

Abstract: Oasis landscape ecosystem is composed of 10 landscape elements,i.e,residence land,cultivated land,grassland,forestland,water area, water system, road, rocky desert, sandy desert, and gravel desert. Among the elements, cultivated land formed by human being production covers the most of the area,is most connected, and hence,is the matrix of the oasis landscape ecosystem. Residence land, grassland, forestland, water area, rocky desert, sandy desert, and gravel desert are patches. Residence land and forestland generate from human being production,while rocky desert, gravel desert and sandy desert are the remnant with the human being disturbance. Water region and grassland are the environmental resources remnant after natural disturbance. Water system and road are corridors.Cultivated land dominated in plant production should be utilized with more productive layers through developing animal production other than expanding used area to maintain the landscape heterogeneity and diversity of the oasis landscape ecosystem. For remnant and environmental resource patches, it should be profitable in preserving and stabilizing landscape heterogeneity and diversity, exploiting the functions of water and soil conservation, tourism, windbreak and sand fixation. For landscape elements remnant only, it should be fruitful in avoiding degeneration of the landscape pattern to explore their preceding plant production with moderate plant production.

Key words: Hexi corridor, Oasis landscape ecosystem, Landscape pattern, Productivity

CLC Number:

S69
Q149

LIU Xuelu, REN Jizhou, ZHANG Zihe . Landscape pattern and productivity characteristics of the oasis landscape ecosystem in Linze,Gansu,China[J]. Chinese Journal of Applied Ecology, 2002, (8): 975-978.

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